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Category name Best seller rank 50th book's rank Median sales($) Median price ($) Volatility (%) New releases (%) Self pub.(%) KDP Select (%) Competition
Books > Science & Nature > Mathematics > Mathematical Foundations > Mathematical Logic 1,427 30,334 £506 £9.04 85% 0% 0% 0% ~ 7,000
Books > Science & Nature > Engineering & Technology > Civil Engineering > Mechanics 2,110 39,048 £456 £16.32 100% 6% 25% 3% ~ 70,000
Books > Science & Nature > Mathematics > Mathematical Foundations 1,233 49,591 £759 £9.04 80% 0% 10% 0% ~ 10,000
Books > Science & Nature > Physics > Mechanics 408 58,988 £558 £9.98 95% 0% 30% 4% ~ 20,000
Books > Science & Nature > Earth Sciences & Geography > Geology > Soil Science 4,869 299,447 £406 £14.52 95% 5% 15% 0% ~ 4,000
Books > Science & Nature > Mathematics > Mathematical Foundations > Set Theory 22,387 393,447 £559 £19.99 100% 5% 30% 0% ~ 1,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Fluid Mechanics 28,359 550,796 £854 £30.53 100% 0% 5% 0% ~ 4,000
Books > Science & Nature > Engineering & Technology > Civil Engineering > Foundations & Soil Mechanics 48,635 912,113 £0 £44.17 100% 0% 50% 0% ~ 1,000
Books > Home & Garden > Gardening > Professional Horticulture > Soil Science 11,552 1,812,323 £370 £13.23 100% 20% 10% 3% ~ 10,000